Volume 87, Number 4, August 2009
|Number of page(s)||6|
|Published online||31 August 2009|
Suppression and recovery of spatiotemporal chaos in a ring of coupled oscillators with a single inactive site
Department of Mathematical Sciences, Graduate School of Engineering, Osaka Prefecture University Sakai 599-8531, Japan
Accepted: 31 July 2009
The effect of a single inactive site is studied on spatiotemporal dynamics in a ring of locally coupled Stuart-Landau oscillators. An inactive site is where a damped oscillator is placed instead of an active (i.e. spontaneous) one. It is numerically shown that such a site suppresses spatiotemporal chaos (STC) in some region of a parameter plane. How STC recovers as a parameter is varied is elucidated by introducing some order parameters quantifying the degree of phase-locking and frequency synchronization between each active oscillator and the inactive one.
PACS: 05.45.Xt – Synchronization; coupled oscillators / 05.45.-a – Nonlinear dynamics and chaos
© EPLA, 2009
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